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I agree with Ard in theory and principle, but does anyone know if this sensor is accessible? I don't see any of the individual components of the active tank (pump, sensors, etc) in the parts list so...

I discovered the very same thing on ours. When I brought it to the attention of the SA he responded that the system is designed to maintain a 70-80% state of charge on the battery in order to extend...

The engine problems that BMW had in the 1990's were related to Nikasil cylinder wall plating. As the name implies this is a plating process to impart a hard nickle-silicon layer for wear resistance....